目的 颅脑损伤患者手术治疗前 后CT环池影像学改变分析。方法 选取我 院2013年5月至2015年5月80例颅脑损伤 患者为研究对象，所有患者均行颅脑CT 扫描，根据环池改变程度分型分为A组(14 例)、B组(25例)、C组(31例)、D组(10 例)，分别为Ⅰ、Ⅱ、Ⅲ、Ⅳ型。比较环 池的受压程度与预后的关系，并分析影像 学特点。结果 A、B、C、D组死亡率依次 升高，分别为0.00%、23.81%、53.85%、 86.67%，四组两两比较差异有统计学意义 (P<0.05)。18例环池无明显受压情况， 无闭塞患者中，14例预后良好，3例中度 残疾，1例重度残疾，无植物生存与死亡 患者。21环池变窄、轻度受压，环池宽 度为1-2mm患者中，12例预后良好，2例中 度残疾，重度残疾、植物生存各1例，死 亡5例。26例环池中度受压，宽度＜1mm患 者中，7例预后良好，1例中度残疾，重度 残疾、植物生存各2例，14例死亡。15例 环池重度受压，完全闭塞患者中，预后良 好、植物生存各1例，13例死亡。结论 颅 脑损伤患者环池的受压程度越严重，预后 越差；手术治疗可减轻患者环池受压程 度，达到治疗效果。

Objective To analyze the imaging changes of CT ambient cistern in patients with traumatic brain injury before and after operation. Methods Eighty patients with traumatic brain injury treated in our hospital during May 2013 to May 2015 were selected as study subjects. All patients underwent brain CT scan. According to the change degree of ambient cistern, the subjects were divided into group A (14 cases), group B (25 cases), group C (31 cases) and group D (10 cases), and they were type I, II, III and IV respectively. The relationship between the compression degree of ambient cistern and the prognosis was compared, and the imaging characteristics were analyzed. Results The mortality rates in group A, group B, group C and group D were 0.00%, 23.81%, 53.85% and 86.67%, respectively, showing an increasing trend. The differences between any two groups were significant (P<0.05). There was no obvious compression of ambient cistern in 18 cases. Among patients without occlusion, there were 14 cases with good prognosis, 3 cases with moderate disability, 1 case with severe disability and none cases in persistent vegetative state or death. There was ambient cistern narrowing and mild compression in 21 cases. Among patients whose width of ambient cistern was 1-2mm, there were 12 cases with good prognosis, 2 cases with moderate disability, 1 case with severe disability, 1 cases in persistent vegetative state and 5 cases of death. Among 26 cases with moderate compression of ambient cistern and whose width of ambient cistern was < 1mm, there were 7 cases with good prognosis, 1 cases with moderate disability, 2 cases with severe disability, 2 cases in persistent vegetative state and 14 cases of death. Among 15 cases with severe compression of ambient cistern and complete occlusion, there was 1 cases with good prognosis, 1 cases in persistent vegetative state and 13 cases of death. Conclusion The severer compression of ambient cistern in patients with traumatic brain injury is, the worse prognosis is. Surgical treatment can reduce the compression of ambient cistern, achieving curative effect.